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Blood Tests For Prostate Cancer

Specialist Referral And Biopsy

HealthWatch: New Blood Test Can Improve Screenings For Prostate Cancer

Your doctor will discuss your prostate check results with you. If the PSA and DRC results suggest you have a high risk for prostate cancer, your doctor will refer you to a urologist .

The specialist will discuss having a prostate biopsy, in which a small sample of your prostate gland cells are taken for examination.

The aim of the biopsy is to confirm whether or not you have prostate cancer and, if so, whether it needs treatment. The treatment options will then be discussed with you.

If the biopsy shows no evidence of cancer, you may be advised to attend future check-ups.

Tests Your Specialist Might Do

Depending on the results of your tests, your GP might refer you to a specialist. You usually see a urologist. This is a doctor who specialises in treating problems of the urinary tract such as the prostate, bladder and kidneys.

Your specialist usually does more tests. These include:

  • an MRI scan
  • bone scan

Tests To Diagnose And Stage Prostate Cancer

Most prostate cancers are first found as a result of screening. Early prostate cancers usually dont cause symptoms, but more advanced cancers are sometimes first found because of symptoms they cause.

If prostate cancer is suspected based on results of screening tests or symptoms, tests will be needed to be sure. If youre seeing your primary care doctor, you might be referred to a urologist, a doctor who treats cancers of the genital and urinary tract, including the prostate.

The actual diagnosis of prostate cancer can only be made with a prostate biopsy .

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What This Means For You

The Prostate Cancer UK spokesperson sounds a note of caution for now, pointing out that until these studies have been conducted, we dont have enough information about its benefits.

This innovative testing method is an interesting new approach, but there simply hasnt been enough detailed research into its effectiveness for us to be able to recommend for its use at this stage, he says. Until then, we would not recommend that anyone use this test as a substitute for current standard methods.

Of course, research in the field will be continuing apace.

In order to save more lives from prostate cancer it is crucial that we create a diagnostic process that is robust enough to routinely diagnose men early and accurately, says the spokesperson.

What’s A Raised Psa Level

Prostate

The amount of PSA in your blood is measured in nanograms of PSA per millilitre of blood .

If you’re aged 50 to 69, raised PSA is 3ng/ml or higher.

A raised PSA level in your blood may be a sign of prostate cancer, but it can also be a sign of another condition that’s not cancer, such as:

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What Happens If My Psa Level Is Elevated

If you have a high PSA level, you will need ongoing PSA tests and DREs so your provider can look for any changes. If the PSA level continues to increase or if your healthcare provider finds a lump during a DRE, you may need other tests, including:

  • Transrectal ultrasound and prostate biopsies.
  • Prostate MRI.
  • Iso PSA or 4KscoreĀ® .

A biopsy can tell you definitively if you have prostate cancer. The biopsy results also affect your treatment. For example, if the biopsy shows a lot of cancer cells, you might need more aggressive treatment.

Early Detection Saves Lives

Prostate cancer is the most common cancer affecting Australian men .

Prostate cancer is the growth of abnormal cells in the prostate gland. This gland is only found in males and is about the size of a walnut.

The causes of prostate cancer are not understood and there is currently no clear prevention strategy.

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What Tests Screen For Prostate Cancer

Two tests are commonly used to screen for prostate cancer:

  • A prostate-specific antigen test, also called a PSA blood test. PSA is a protein made by your prostate. A high level of PSA in your blood may mean you have prostate cancer, but it’s not proof of cancer. That’s because many other things may cause high PSA levels, including:
  • Having an enlarged prostate
  • Problems controlling your bowel movements
  • Further Tests For Prostate Cancer

    Prostate Cancer Symptoms And The PSA Blood Test – Macmillan Cancer Support

    If results of the PSA test or the DRE are abnormal, a urologist will likely recommend a biopsy, where small samples of tissue are removed from the prostate and examined.

    If cancer is diagnosed, other tests may be used to check the progression of the cancer, including:

    • magnetic resonance imaging scan of the prostate – often done before a biopsy
    • bone scan – to check whether or not cancer cells have spread to the bones
    • computed tomography scan – a specialised x-ray
    • pelvic lymph node dissection – a nearby lymph node is removed and examined to check whether or not cancer cells have entered the lymphatic system .

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    Study: New Prostate Cancer Test Could Avoid Unnecessary Biopsies

    Urine test found to be extremely accurate at detecting aggressive prostate cancer with few false negatives.

    A urine test based on University of Michigan Rogel Cancer Center research could have avoided one third of unnecessary prostate cancer biopsies while failing to detect only a small number of cancers, according to a validation study that included more than 1,500 patients. The findings appear in the March issue of the Journal of Urology.

    The MyProstateScore test, which is being commercialized by LynxDX, a U-M startup company, measures levels of cancer-specific genes in a patients urine. It is based on U-M research that discovered that half of all prostate tumors harbor a certain genetic anomaly in which the genes TMPRSS2 and ERG relocate on a chromosome and fuse together creating an on-switch for prostate cancer development.

    Currently, one of doctors best methods for detecting prostate cancer is a blood test for prostate-specific antigen, commonly known as the PSA test. Elevated PSA levels may indicate cancer, but the majority of men with an elevated PSA do not actually have prostate cancer.

    Our ultimate goal was to determine whether the MyProstateScore test could be a practical, reliable test that could rule out the need for more costly or invasive testing in men referred for a prostate biopsy, says study lead author Jeffrey Tosoian, M.D., M.P.H., a clinical lecturer in urology at Michigan Medicine.

    What Is The Psa Test

    Prostate-specific antigen, or PSA, is a protein produced by normal, as well as malignant, cells of the prostate gland. The PSA test measures the level of PSA in the blood. For this test, a blood sample is sent to a laboratory for analysis. The results are usually reported as nanograms of PSA per milliliter of blood.

    The blood level of PSA is often elevated in people with prostate cancer, and the PSA test was originally approved by the FDA in 1986 to monitor the progression of prostate cancer in men who had already been diagnosed with the disease. In 1994, FDA approved the PSA test to be used in conjunction with a digital rectal exam to aid in the detection of prostate cancer in men 50 years and older. Until about 2008, many doctors and professional organizations had encouraged yearly PSA screening for prostate cancer beginning at age 50.

    PSA testing is also often used by health care providers for individuals who report prostate symptoms to help determine the nature of the problem.

    In addition to prostate cancer, several benign conditions can cause a persons PSA level to rise, particularly prostatitis and benign prostatic hyperplasia . There is no evidence that either condition leads to prostate cancer, but someone can have one or both of these conditions and develop prostate cancer as well.

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    What Is A Normal Psa Test Result

    There is no specific normal or abnormal level of PSA in the blood. In the past, PSA levels of 4.0 ng/mL and lower were considered normal. However, some individuals with PSA levels below 4.0 ng/mL have prostate cancer and many with higher PSA levels between 4 and 10 ng/mL do not have prostate cancer .

    In addition, various factors can cause someones PSA level to fluctuate. For example, the PSA level tends to increase with age, prostate gland size, and inflammation or infection. A recent prostate biopsy will also increase the PSA level, as can ejaculation or vigorous exercise in the 2 days before testing. Conversely, some drugsincluding finasteride and dutasteride, which are used to treat BPHlower the PSA level.

    In general, however, the higher a mans PSA level, the more likely it is that he has prostate cancer.

    Need For This Guidance

    Why a one

    New Zealand men currently receive conflicting advice about prostate cancer testing and treatment. Some men may benefit from early diagnosis and treatment, but have limited opportunity to access appropriate health services.

    Unlike other cancers, prostate cancer often grows slowly. With routine prostate specific antigen testing, many men can be diagnosed with a cancer that is not going to progress during their lifetime. Such a diagnosis may increase mens exposure to unnecessary treatment-related harms.

    On the other hand, some men will still develop aggressive and potentially life-threatening prostate cancer. These men may benefit from prompt diagnosis and treatment.

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    Psa Test For Prostate Cancer

    The prostate gland makes a protein called prostate specific antigen . This protein helps to nourish sperm. Normally, only tiny amounts of it enter the bloodstream.

    Cancer cells in the prostate interfere with proper functioning and can cause large amounts of PSA to enter the bloodstream. Therefore, when high levels of PSA are detected in the bloodstream, this may indicate cancer.

    Early prostate cancer often has no symptoms. However, high PSA levels can occur five to 10 years before the onset of prostate cancer symptoms. In such circumstances, the PSA test can help to indicate the presence of cancer at an early stage.

    Other tests are needed to confirm a diagnosis because an abnormal PSA test can be due to non-cancerous causes. Equally, it is possible for a man to have a normal PSA level when cancer is present.

    What Is The Phi Test

    The PHI or Prostate Health Index test is a blood test that is used to predict the risk of having prostate cancer in men. The PHI test is used instead of the traditional PSA test. The Prostate Health Index test is actually derived from the PSA test. The PHI test is a combination of the free PSA, total PSA, and the proPSA isoform of free PSA. These 3 tests are mathematically combined in a formula that results in a Prostate Health Index or PHI score. The PHI score is a better predictor of prostate cancer than the total PSA test alone or the free PSA test alone. The Prostate Health Index is also a better predictor of prostate cancer risk than the free PSA to total PSA ratio or the free PSA ratio.

    The PHI test offers better sensitivity as well as better sensitivity for prostate cancer. This means that men with a low score are less likely to have prostate cancer and those with a higher score are much more likely to have prostate cancer.

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    Special Types Of Psa Tests

    The PSA level from a screening test is sometimes referred to as total PSA, because it includes the different forms of PSA . If you decide to get a PSA screening test and the result isnt normal, some doctors might consider using different types of PSA tests to help decide if you need a prostate biopsy, although not all doctors agree on how to use these tests. If your PSA test result isnt normal, ask your doctor to discuss your cancer risk and your need for further tests.

    Percent-free PSA: PSA occurs in 2 major forms in the blood. One form is attached to blood proteins, while the other circulates free . The percent-free PSA is the ratio of how much PSA circulates free compared to the total PSA level. The percentage of free PSA is lower in men who have prostate cancer than in men who do not.

    If your PSA test result is in the borderline range , the percent-free PSA might be used to help decide if you should have a prostate biopsy. A lower percent-free PSA means that your chance of having prostate cancer is higher and you should probably have a biopsy.

    Many doctors recommend a prostate biopsy for men whose percent-free PSA is 10% or less, and advise that men consider a biopsy if it is between 10% and 25%. Using these cutoffs detects most cancers and helps some men avoid unnecessary biopsies. This test is widely used, but not all doctors agree that 25% is the best cutoff point to decide on a biopsy, and the cutoff may change depending on the overall PSA level.

    What Does Psa Mean

    PSA blood test easiet way to detect prostate cancer

    PSA, or prostate-specific antigen, is a protein produced by the prostate and found mostly in semen, with very small amounts released into the bloodstream. When theres a problem with the prostatesuch as the development and growth of prostate cancermore PSA is released. Sometimes, a mans prostate releases slightly high PSA for other reasons. Rising PSA eventually reaches a level where it can be easily detected by a blood test.

    For more information on rising PSA, download or order your free copy of the Prostate Cancer Patient Guide.

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    What Other Test Are Available For Men At Risk For Prostate Cancer

    While traditionally, the options available to men at risk for prostate cancer were limited to PSA blood test and a prostate exam , a number of exciting innovative options are now available.

    PSA is still a useful test but is being supplanted by more informative tests such as 4KScore and PHI , both of which incorporate the traditional PSA test as well. Thus, the report will list both the traditional PSA test and the 4KScore or PHI score respectively.

    PHI is a new test that provides an incremental improvement over the PSA test alone when it comes to predicting the risk of prostate cancer. It can be used to reduce the need for unnecessary biopsies in some men.

    If you have any questions, to schedule a consultation or if you need a second opinion, pleasecontact us or call:

    What Are Additional Tests For Detecting Prostate Problems

    If the DRE or the PSA blood test indicates a problem may exist, the health care provider may order additional tests, including urinalysis, urodynamic tests, cystoscopy, abdominal ultrasound, transrectal ultrasound with prostate biopsy, and imaging studies such as magnetic resonance imaging or computerized tomography scan.

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    What Are The Advantages Of Prostate Health Index Test

    Because PHI has a better predictive ability, it has been recommended by the NCCN as a test to be used in men at risk for prostate cancer. the Prostate Health Index test is superior to total PSA, as well as free PSA to total PSA ratio when it comes to predicting the risk of having prostate cancer in men with PSA level under 10.

    The PHI test is also superior to the PCA3 test in predicting whether a man has prostate cancer.

    The PHI test can be used to choose men who need a prostate biopsy. The Prostate Health Index test can also be used to choose men who are unlikely to have prostate cancer and thus can avoid a biopsy.

    What Have Randomized Trials Of Prostate Cancer Screening Found

    1 x GP Professional PSA Prostate Cancer Disorder Blood Test Screening ...

    Several large, randomized trials of prostate cancer screening have been carried out. One of the largest is the Prostate, Lung, Colorectal, and Ovarian Cancer Screening Trial, which NCI conducted to determine whether certain screening tests can help reduce the numbers of deaths from several common cancers. In the prostate portion of the trial, the PSA test and digital rectal exam were evaluated for their ability to decrease a mans chances of dying from prostate cancer.

    The PLCO investigators found that men who underwent annual prostate cancer screening had a higher incidence of prostate cancer than men in the control group but had about the same rate of deaths from the disease . Overall, the results suggest that many men were treated for prostate cancers that would not have been detected in their lifetime without screening. Consequently, these men were exposed unnecessarily to the potential harms of treatment.

    A second large trial, the European Randomized Study of Screening for Prostate Cancer , compared prostate cancer deaths in men randomly assigned to PSA-based screening or no screening. As in the PLCO, men in ERSPC who were screened for prostate cancer had a higher incidence of the disease than control men. In contrast to the PLCO, however, men who were screened had a lower rate of death from prostate cancer .

    The United States Preventive Services Task Force has estimated that, for every 1,000 men ages 55 to 69 years who are screened for 13 years :

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    What Is Done If A Screening Test Shows An Elevated Psa Level

    If someone who has no symptoms of prostate cancer chooses to undergo prostate cancer screening and is found to have an elevated PSA level, the doctor may recommend another PSA test to confirm the original finding. If the PSA level is still high, the doctor may recommend that the person continue with PSA tests and digital rectal exams at regular intervals to watch for any changes over time .

    If the PSA level continues to rise or a suspicious lump is detected during a DRE, the doctor may recommend additional tests to determine the nature of the problem. These may include imaging tests, such as magnetic resonance imaging or high-resolution micro-ultrasound.

    Alternatively, the doctor may recommend a prostate biopsy. During this procedure, multiple samples of prostate tissue are collected by inserting hollow needles into the prostate and then withdrawing them. The biopsy needle may be inserted through the wall of the rectum or through the perineum . A pathologist then examines the collected tissue under a microscope. Although both biopsy techniques are guided by ultrasound imaging so the doctor can view the prostate during the biopsy procedure, ultrasound cannot be used alone to diagnose prostate cancer. An MRI-guided biopsy may be performed for patients with suspicious areas seen on MRI.

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